May 1, 2014, marks the 10th anniversary of the largest-ever expansion of the European Union. In honor of the occasion, RFE/RL looks at the history of the EU and its precursors with a quiz aimed at finding out how much you know about EU enlargement.
Question 1 / 10
The European Coal and Steel Community (ECSC) was the original institution serving to unify European states. It was established in 1951 by which six countries?
